CVE-2019-2974 : Exploit Details and Defense Strategies

A security flaw has been found in the Oracle MySQL product, affecting versions 5.6.45 and earlier, 5.7.27 and earlier, and 8.0.17 and earlier. This vulnerability allows attackers with low privileges and network access to compromise the MySQL Server, potentially leading to a denial of service.

Understanding CVE-2019-2974

This CVE identifies a vulnerability in the MySQL Server Optimizer component.

What is CVE-2019-2974?

The vulnerability in the MySQL Server product of Oracle MySQL allows attackers with low privileges and network access to compromise the server through various protocols.

The Impact of CVE-2019-2974

If exploited, this vulnerability could result in unauthorized actions that may cause the server to hang or crash repeatedly, leading to a complete denial of service. The CVSS 3.0 Base Score rates the impact on availability at 6.5.

Technical Details of CVE-2019-2974

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in the MySQL Server product of Oracle MySQL allows low-privileged attackers with network access to compromise the server, potentially leading to a denial of service.

Affected Systems and Versions

MySQL Server versions 5.6.45 and prior
MySQL Server versions 5.7.27 and prior
MySQL Server versions 8.0.17 and prior

Exploitation Mechanism

Attackers with low privileges and network access can exploit this vulnerability through various protocols, compromising the MySQL Server.

Mitigation and Prevention

Protecting systems from CVE-2019-2974 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by Oracle promptly
Monitor network traffic for any suspicious activity
Restrict network access to the MySQL Server

Long-Term Security Practices

Regularly update and patch MySQL Server installations
Implement strong access controls and authentication mechanisms
Conduct regular security audits and vulnerability assessments

Patching and Updates

Ensure that all MySQL Server installations are updated with the latest security patches to mitigate the risk of exploitation.